TV Database, by state:
TV Database, by channel:
TV Database, by state, on Google Maps:
TV Database, by channel, on Google Maps:
FM Database, by state:
FM Database, by frequency:
FM Database, by state, on Google Maps:
FM Database, by channel, on Google Maps:
"Under the hood" changes to Mexican
You may have noticed some rather long lists of "zombie"
low-power stations on certain channels. (channel 5, for
example) These were the result of the FCC adding some
low-power records (not corresponding to any actual station I
know of) using facility_id keys WAY outside the range
These facility_ids collided with ones I'd assigned to
Mexican stations. (non-U.S. stations don't have assigned
This resulted in MANY Mexican stations matching certain U.S.
low-power records and vice-versa.
I fixed the issue by splitting the Mexican and U.S. data
into separate tables. Mexican and U.S. listings are
generated separately and then merged after the tables are
output. Seems to work.
I expect to do the same with Canadian data over the next few
weeks. For better or worse there are far fewer records in
Canada to deal with.
TV station coverage maps.
Due to changes to Google Maps, you may have noticed the
links to tower sites and coverage areas have stopped
TV station coverage maps, calculated by the FCC, are now
available. Click on the call letters of any U.S. station in
the TV Database by state or TV Database by channel listings.
A KML file will be downloaded.
There are two things you can do with this file:
Open it in Google
Add it to a personal map in Google Maps. Click the menu
(three horizontal bars), then My Maps, then Create Map, then
Import, then select the file you saved.
Mexican TV listings have been updated.
Many thanks to Raymie Humbert for his help.
HAATs are estimated - the Mexican government releases only antenna
height above ground data. Google Earth and the GLOBE
database (searchable on the FCC website) make it possible to
reasonably estimate HAAT from this data. Using the same
methodology with U.S. stations yields results that compare
well with FCC records.
Virtual channel information is subject to change and may not
be entirely accurate.
Why DTV needs virtual channel remapping.
a snapshot of the analog TV dial as it existed at the end of
full-power analog TV in the United States.
Occasional original articles:
PI Code conversion for Windows
"FrankenFMs" and the FCC regulations
Audio recordings made with SDR.
Why DTV needs virtual channel remapping.
Government broadcasting information:
Media Bureau, FCC
FCC Broadcast Applications
FCC Broadcast Actions
FCC Broadcast Call Changes
Search FCC broadcast databases
Download FCC broadcast database files
Coverage maps of existing DTV stations (and their analog facilities)
As above, but only those stations with a significant change in coverage.
A ZIP file with all maps, but this is a 300 megabyte download!
Canadian Radio-television and Communications Commission news.
Industry Canada technical database.
Mexican AM radio
Mexican FM radio
Mexican analog TV
Mexican digital TV
Other broadcast listings:
Fred Cantu's site for Mexican station information
DX links & organizations:
Worldwide TV-FM DX Association website
Worldwide TV-FM DX Association discussion board
National Radio Club (for AM)
International Radio Club of America (also AM)
American Radio Relay League (for ham radio)
Thomas White's radio history site. Recommended!
Jeff Miller's radio history site. Also recommended!
BBC-TV, 1938 - recorded in New York via F2 skip!
WLW 500kw transmitter schematic
The rest of Jim Hawkins' excellent radio pages
Original 1952 TV channel allotments.
Translators above channel 69, all are gone now.
WTVT-13 Tampa history. Lots of pictures.
Bill Hepburn's tropospheric propagation forecasts.
The rest of Bill's excellent site!
My blog, mostly about AM but some FM/TV items as well.
RBDS PI code => callsign calculator. USA only, Canadian and other non-US stations will give bad results. Some U.S. stations use the wrong codes too.
RBDS callsign => PI code calculator. Again, USA only.
DX Summit real-time ham radio propagation logging
Accurate carrier frequency measurements for identification of F2 DX
Stallions Satellite & Antenna, a site selling TV antennas. Has good technical articles.
"How to send ear-S", signal strength reporting by ear. Try "back to index" for some interesting homebrew electronics pages!
This page prepared with the help of:
© D. Smith W9WI 2012